Device for swaging insertible saw-teeth



(No Model.)

N. H; WHEELER & N. M. NEWHOUSE. DEVIGE FOR SWAGI NG INSERTIBLE SAWTEETH.

No. 425,196. Patented Apr. 8, 1890.

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UNITE STATES PATENT OEEIcE.

NELS H. WHEELER AND NEIL M. NEWHOUSE, OF CORVALLIS, OREGON.

DEVICE FOR SWAGING INSERTIBLE SAW-TEETH.

SPECIFICATION forming part of Letters Patent No. 425,196, dated April 8,1890. Application filed October 26, 1888- Serial No. 289,135. (Nomodel.)

To all whom it may concern:

Be it known that we, NELs H. WHEELER and NEIL M. NEWHOUSE, of Corvallis,in the county of Benton. and State of Oregon, have invented a new andImproved Device for Swaging Insertible Saw-Teeth, of which the followingis a full, clear, and exact description.

This invention relates to saw-swaging devices, the object of theinvention being to improve the swaging device illustrated, described,and claimed-in Letters Patent of the United States No. 364,877, grantedto us on the 14th day of June, 1887.

The features of the improvement are as hereinafter described andclaimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures and letters of referenceindicate corresponding parts in all the views.

Figure 1 is a face view of my improved device for swaging insertiblesaw-teeth, parts.

being broken away. Fig. 2 is a cross-sectional elevation of the device;and Fig. 3 is a perspective view of the swage-block, the adjustabledie-blocks being shown in position.

In the drawings, 10 represents the stock or standard of the machine, theupper end of which stock is slotted to receive the swaginglever 11,which lever is made integral with or rigidly connected to a pointedoperating-cam 12, the point or angle of said cam being shown at a. Aswage-block 13 is held against the standard 10 by a bolt 14, which boltpasses through an elongated vertical slot 12, that is formed through thebody of the stock or standard, and in order that the swageblock may beproperly guided we form said block with side ribs or flanges 15, whichoverlap a central rib 16, that extends outward from the stock orstandard 10. A shoulder 17 extends outward from the rib 16, and thisshoulder serves as the bed or support for adj usting Wedges 18, whichserve to rigidly support the swage-block in any desired position, aswill be hereinafter more fully explained.

In the upper face of the block 13 there is a recess, in which are fitteddie-blocks 20 and 21, the die-block 20 being formed with a centralrecess 0, formed with a curved definingwall, against which the curvedface at of the saw=teeth 3O rests, while the die-block 21 is formed witha bearing-face 6, arranged to support the flat exposed end of thesaw-tooth.

In order that the blocks 20 and 21 may be adjusted so as to operateproperly in connection with saw-teeth of diiferent sizes, we provide aset-screw 22, which passes through a portion of the swage block 13 inposition such that the forward end of the screw may be brought to bearagainst the side face of the block 20 and bind it firmly to any positionto which the block may be adjusted, while the block 21 may be adjustedas to height by placing a washer beneath the block, as will be readilyunderstood.

To hold the saw-tooth firmly in position when it is being swaged, weprovide a clamping arm or lever 23, whichis loosely connected to oneside of the swage-block and arranged so that it may be thrown across theface of the upper die-block, there to enter the recess formed in theforward face of the sawtooth. (See Fig. 1.)

To adjust the block 13, the nut of the bolt 14 is loosened, the blockmoved to a proper position, the wedges 18 being adjusted beneath theblock, so as to properly support it, after which the nut of the bolt istightened to hold the block against accidental displacement, and theblock 13 having been properly adjusted, the die-blocks 20 and 21 areadjustedj to suit the requirements of the sawteeth that are to beswaged. 'Then as the lever 11 is moved in the direction of its arrow thecam 12 will be brought to bear against the tooth 30 and will act thereonuntil the point a has passed the 100th, the lever dropping somewhatbeyond the position in which it is shown in dotted lines in Fig. 2. Bythis arrangement we provide for a uniform action upon all teeth operatedupon.

In order that the saw-tooth may be spread as well as drawn, we make theoperating camface convex.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent- 1. As an improvement in devices for swaginginsertible saw-teeth, the improved means hereinbefore described, to wit:the die block,

a die mounted 1)]161GO]1,L11C1fihOSWflfIiHg-IGYGI lever, and atooth-holding bar, substantially having its face provided with point a,as as described.

shown and described. NELS 1'1. \VI'IEELER.

2. In a saW-sWa-ging device, the eombina- NEIL M. NEVVIIOUSE. 5 tion,with a stock or standard, of a swage- \Vitnesses:

block adjustably held thereto, dies adjustu- \V. E. MCLEOD,

bly supported by the swage-b10ek,a swag'iug- JOHN BURNETT.

